Iris - quicken

Why not put a couple stakes (branches,etc) around them and pop a plastic recycling bag (or any clear plastic) around them for the night? I had to do that with my bloodleaf plant whigh I had overwintered indoors and planted earlier this week - it's still under wraps until it warms up a bit. It doesn't protect a lot but better than nothing...

Last night I put one of those blue utility buckets (with the rope handles) over the plant but had to do some squeezing to fit it over because the clump is so wide. In the end we had -1 C temperatures but no frost.
There's another forst alert for tonight so I'll cover it again, but will learn from this to prepare a frost emergency kit for several plants.
Have you ever lost irises to frost in the spring or is it uncommon?

I haven't lost irises, but this year some of the hyacynths actually became stunted and didn't flower after the cold came back - first time I had a perennial problem. Usually my trouble is impatience in waiting to set out my annuals,either planting too early or not hardening off cautiously enough, and they suffer for it, lol!

Patience is not my strong point either :)

Well, I think they made it ok through the colder weather, and are starting to open up. Should be in full bloom by weekend :D